{"id":"https://openalex.org/W7163414339","doi":"https://doi.org/10.1016/j.cam.2026.117861","title":"What drives stock market herding in Africa: Impact of America and China","display_name":"What drives stock market herding in Africa: Impact of America and China","publication_year":2026,"publication_date":"2026-06-03","ids":{"openalex":"https://openalex.org/W7163414339","doi":"https://doi.org/10.1016/j.cam.2026.117861"},"language":"en","primary_location":{"id":"doi:10.1016/j.cam.2026.117861","is_oa":true,"landing_page_url":"https://doi.org/10.1016/j.cam.2026.117861","pdf_url":null,"source":{"id":"https://openalex.org/S165473669","display_name":"Journal of Computational and Applied Mathematics","issn_l":"0377-0427","issn":["0377-0427","1879-1778"],"is_oa":false,"is_in_doaj":false,"is_core":true,"host_organization":"https://openalex.org/P4310320990","host_organization_name":"Elsevier BV","host_organization_lineage":["https://openalex.org/P4310320990"],"host_organization_lineage_names":["Elsevier BV"],"type":"journal"},"license":"cc-by-nc","license_id":"https://openalex.org/licenses/cc-by-nc","version":"publishedVersion","is_accepted":true,"is_published":true,"raw_source_name":"Journal of Computational and Applied Mathematics","raw_type":"journal-article"},"type":"article","indexed_in":["crossref"],"open_access":{"is_oa":true,"oa_status":"hybrid","oa_url":"https://doi.org/10.1016/j.cam.2026.117861","any_repository_has_fulltext":false},"authorships":[{"author_position":"first","author":{"id":"https://openalex.org/A5093311996","display_name":"Marija Tatomir","orcid":null},"institutions":[{"id":"https://openalex.org/I203951103","display_name":"Keio University","ror":"https://ror.org/02kn6nx58","country_code":"JP","type":"education","lineage":["https://openalex.org/I203951103"]}],"countries":["JP"],"is_corresponding":true,"raw_author_name":"Marija Tatomir","raw_affiliation_strings":["Keio University, Japan"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"Keio University, Japan","institution_ids":["https://openalex.org/I203951103"]}]},{"author_position":"last","author":{"id":"https://openalex.org/A5016705582","display_name":"Norio Hibiki","orcid":null},"institutions":[{"id":"https://openalex.org/I203951103","display_name":"Keio University","ror":"https://ror.org/02kn6nx58","country_code":"JP","type":"education","lineage":["https://openalex.org/I203951103"]}],"countries":["JP"],"is_corresponding":false,"raw_author_name":"Norio Hibiki","raw_affiliation_strings":["Keio University, Japan"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"Keio University, Japan","institution_ids":["https://openalex.org/I203951103"]}]}],"institutions":[],"countries_distinct_count":1,"institutions_distinct_count":1,"corresponding_author_ids":["https://openalex.org/A5093311996"],"corresponding_institution_ids":["https://openalex.org/I203951103"],"apc_list":{"value":3040,"currency":"USD","value_usd":3040},"apc_paid":{"value":3040,"currency":"USD","value_usd":3040},"fwci":0.0,"has_fulltext":false,"cited_by_count":0,"citation_normalized_percentile":{"value":0.74151501,"is_in_top_1_percent":false,"is_in_top_10_percent":false},"cited_by_percentile_year":null,"biblio":{"volume":"489","issue":null,"first_page":"117861","last_page":"117861"},"is_retracted":false,"is_paratext":false,"is_xpac":false,"primary_topic":{"id":"https://openalex.org/T13867","display_name":"Economic Growth and Development","score":0.16140000522136688,"subfield":{"id":"https://openalex.org/subfields/1710","display_name":"Information Systems"},"field":{"id":"https://openalex.org/fields/17","display_name":"Computer Science"},"domain":{"id":"https://openalex.org/domains/3","display_name":"Physical Sciences"}},"topics":[{"id":"https://openalex.org/T13867","display_name":"Economic Growth and Development","score":0.16140000522136688,"subfield":{"id":"https://openalex.org/subfields/1710","display_name":"Information Systems"},"field":{"id":"https://openalex.org/fields/17","display_name":"Computer Science"},"domain":{"id":"https://openalex.org/domains/3","display_name":"Physical Sciences"}},{"id":"https://openalex.org/T10127","display_name":"Banking stability, regulation, efficiency","score":0.09629999846220016,"subfield":{"id":"https://openalex.org/subfields/2003","display_name":"Finance"},"field":{"id":"https://openalex.org/fields/20","display_name":"Economics, Econometrics and Finance"},"domain":{"id":"https://openalex.org/domains/2","display_name":"Social Sciences"}},{"id":"https://openalex.org/T10047","display_name":"Financial Markets and Investment Strategies","score":0.0738999992609024,"subfield":{"id":"https://openalex.org/subfields/2003","display_name":"Finance"},"field":{"id":"https://openalex.org/fields/20","display_name":"Economics, Econometrics and Finance"},"domain":{"id":"https://openalex.org/domains/2","display_name":"Social Sciences"}}],"keywords":[{"id":"https://openalex.org/keywords/stock-market","display_name":"Stock market","score":0.6033999919891357},{"id":"https://openalex.org/keywords/herding","display_name":"Herding","score":0.5964000225067139},{"id":"https://openalex.org/keywords/china","display_name":"China","score":0.5259000062942505},{"id":"https://openalex.org/keywords/stock","display_name":"Stock (firearms)","score":0.4332999885082245},{"id":"https://openalex.org/keywords/chine","display_name":"Chine","score":0.3499000072479248},{"id":"https://openalex.org/keywords/stock-exchange","display_name":"Stock exchange","score":0.31859999895095825}],"concepts":[{"id":"https://openalex.org/C2780299701","wikidata":"https://www.wikidata.org/wiki/Q475000","display_name":"Stock market","level":3,"score":0.6033999919891357},{"id":"https://openalex.org/C177605951","wikidata":"https://www.wikidata.org/wiki/Q1484503","display_name":"Herding","level":2,"score":0.5964000225067139},{"id":"https://openalex.org/C33923547","wikidata":"https://www.wikidata.org/wiki/Q395","display_name":"Mathematics","level":0,"score":0.5307000279426575},{"id":"https://openalex.org/C191935318","wikidata":"https://www.wikidata.org/wiki/Q148","display_name":"China","level":2,"score":0.5259000062942505},{"id":"https://openalex.org/C204036174","wikidata":"https://www.wikidata.org/wiki/Q909380","display_name":"Stock (firearms)","level":2,"score":0.4332999885082245},{"id":"https://openalex.org/C120359367","wikidata":"https://www.wikidata.org/wiki/Q490032","display_name":"Chine","level":3,"score":0.3499000072479248},{"id":"https://openalex.org/C200870193","wikidata":"https://www.wikidata.org/wiki/Q11691","display_name":"Stock exchange","level":2,"score":0.31859999895095825},{"id":"https://openalex.org/C19244329","wikidata":"https://www.wikidata.org/wiki/Q208697","display_name":"Financial market","level":2,"score":0.28060001134872437},{"id":"https://openalex.org/C149782125","wikidata":"https://www.wikidata.org/wiki/Q160039","display_name":"Econometrics","level":1,"score":0.2736000120639801},{"id":"https://openalex.org/C102235558","wikidata":"https://www.wikidata.org/wiki/Q1609678","display_name":"Herd behavior","level":3,"score":0.27000001072883606},{"id":"https://openalex.org/C88389905","wikidata":"https://www.wikidata.org/wiki/Q223371","display_name":"Stock market index","level":4,"score":0.26570001244544983},{"id":"https://openalex.org/C144133560","wikidata":"https://www.wikidata.org/wiki/Q4830453","display_name":"Business","level":0,"score":0.26269999146461487}],"mesh":[],"locations_count":1,"locations":[{"id":"doi:10.1016/j.cam.2026.117861","is_oa":true,"landing_page_url":"https://doi.org/10.1016/j.cam.2026.117861","pdf_url":null,"source":{"id":"https://openalex.org/S165473669","display_name":"Journal of Computational and Applied Mathematics","issn_l":"0377-0427","issn":["0377-0427","1879-1778"],"is_oa":false,"is_in_doaj":false,"is_core":true,"host_organization":"https://openalex.org/P4310320990","host_organization_name":"Elsevier BV","host_organization_lineage":["https://openalex.org/P4310320990"],"host_organization_lineage_names":["Elsevier BV"],"type":"journal"},"license":"cc-by-nc","license_id":"https://openalex.org/licenses/cc-by-nc","version":"publishedVersion","is_accepted":true,"is_published":true,"raw_source_name":"Journal of Computational and Applied Mathematics","raw_type":"journal-article"}],"best_oa_location":{"id":"doi:10.1016/j.cam.2026.117861","is_oa":true,"landing_page_url":"https://doi.org/10.1016/j.cam.2026.117861","pdf_url":null,"source":{"id":"https://openalex.org/S165473669","display_name":"Journal of Computational and Applied Mathematics","issn_l":"0377-0427","issn":["0377-0427","1879-1778"],"is_oa":false,"is_in_doaj":false,"is_core":true,"host_organization":"https://openalex.org/P4310320990","host_organization_name":"Elsevier BV","host_organization_lineage":["https://openalex.org/P4310320990"],"host_organization_lineage_names":["Elsevier BV"],"type":"journal"},"license":"cc-by-nc","license_id":"https://openalex.org/licenses/cc-by-nc","version":"publishedVersion","is_accepted":true,"is_published":true,"raw_source_name":"Journal of Computational and Applied Mathematics","raw_type":"journal-article"},"sustainable_development_goals":[],"awards":[],"funders":[],"has_content":{"pdf":false,"grobid_xml":false},"content_urls":null,"referenced_works_count":27,"referenced_works":["https://openalex.org/W1993443607","https://openalex.org/W2145541966","https://openalex.org/W2550634690","https://openalex.org/W2554162810","https://openalex.org/W2890548975","https://openalex.org/W2951531201","https://openalex.org/W3102220922","https://openalex.org/W3108909431","https://openalex.org/W3112681173","https://openalex.org/W3121296085","https://openalex.org/W3122000667","https://openalex.org/W3122509291","https://openalex.org/W3123524623","https://openalex.org/W3123733061","https://openalex.org/W3125506956","https://openalex.org/W3125754252","https://openalex.org/W3126113144","https://openalex.org/W4293461758","https://openalex.org/W4308222720","https://openalex.org/W4387898230","https://openalex.org/W4392399063","https://openalex.org/W4392974404","https://openalex.org/W4407184779","https://openalex.org/W4408031542","https://openalex.org/W4408445972","https://openalex.org/W4408806406","https://openalex.org/W4414621245"],"related_works":[],"abstract_inverted_index":{"Africa":[0],"has":[1],"54":[2],"countries,":[3],"but":[4],"over":[5],"half":[6],"of":[7,29,44,66,90],"its":[8],"multi-billion-dollar":[9],"GDP":[10],"is":[11,36],"driven":[12],"by":[13],"only":[14],"three":[15,105],"nations:":[16],"Nigeria,":[17],"Egypt,":[18],"and":[19,46,54,80,104,114],"South":[20],"Africa.":[21,62,123],"To":[22],"sustain":[23],"growth,":[24],"understanding":[25],"the":[26,42,73,83,86,102],"destabilizing":[27],"effects":[28],"herding":[30,45,60,67,91,120],"on":[31],"these":[32],"'risk-on'":[33],"stock":[34],"markets":[35],"crucial.":[37],"This":[38],"paper":[39],"first":[40],"quantifies":[41],"presence":[43],"then":[47],"introduces":[48],"a":[49],"novel":[50],"approach,":[51],"considering":[52],"America":[53,113],"China":[55,115],"as":[56],"principal":[57],"components":[58],"influencing":[59],"in":[61,78,122],"Two":[63],"unique":[64],"adaptations":[65],"methodologies":[68],"are":[69,116],"proposed:":[70],"one":[71],"overcomes":[72],"high":[74],"correlation":[75],"limitations":[76],"seen":[77],"Ridge":[79],"Lasso,":[81],"while":[82],"other":[84],"visualizes":[85],"changing":[87],"weight":[88],"drivers":[89],"trends":[92],"during":[93],"crises.":[94],"The":[95],"analysis":[96],"includes":[97],"six":[98],"independent":[99],"drivers\u2014three":[100],"from":[101,106],"US":[103],"China\u2014across":[107],"four":[108],"major":[109],"recent":[110],"events.":[111],"Both":[112],"found":[117],"to":[118],"influence":[119],"behaviour":[121]},"counts_by_year":[],"updated_date":"2026-06-19T15:47:20.252518","created_date":"2026-06-04T00:00:00"}